From 52f993b8e89487ec9ee15a7fb4979e0f09a45b27 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Wed, 8 Mar 2017 23:13:28 -0800 Subject: Upgrade to 4.4.50-rt62 The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it to 4.4.50-rt62. The command to achieve it is: a) Clone a git repo from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git b) Get the diff between this two changesets: git diff 640eca2901f3435e616157b11379d3223a44b391 705619beeea1b0b48219a683fd1a901a86fdaf5e where the two commits are: [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 640eca2901f3435e616157b11379d3223a44b391 640eca2901f3 v4.4.6-rt14 localversion-rt [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 705619beeea1b0b48219a683fd1a901a86fdaf5e 705619beeea1 Linux 4.4.50-rt62 localversion-rt c) One patch has been backported thus revert the patch before applying. filterdiff -p1 -x scripts/package/Makefile ~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run Upstream status: backport Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01 Signed-off-by: Yunhong Jiang --- kernel/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 48 ++++++++++++++++++++++------ 1 file changed, 39 insertions(+), 9 deletions(-) (limited to 'kernel/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c') diff --git a/kernel/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c b/kernel/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c index 42d954dc4..9b4dcf76c 100644 --- a/kernel/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c +++ b/kernel/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c @@ -392,15 +392,6 @@ static void dce_v8_0_hpd_init(struct amdgpu_device *adev) list_for_each_entry(connector, &dev->mode_config.connector_list, head) { struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); - if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || - connector->connector_type == DRM_MODE_CONNECTOR_LVDS) { - /* don't try to enable hpd on eDP or LVDS avoid breaking the - * aux dp channel on imac and help (but not completely fix) - * https://bugzilla.redhat.com/show_bug.cgi?id=726143 - * also avoid interrupt storms during dpms. - */ - continue; - } switch (amdgpu_connector->hpd.hpd) { case AMDGPU_HPD_1: WREG32(mmDC_HPD1_CONTROL, tmp); @@ -423,6 +414,45 @@ static void dce_v8_0_hpd_init(struct amdgpu_device *adev) default: break; } + + if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || + connector->connector_type == DRM_MODE_CONNECTOR_LVDS) { + /* don't try to enable hpd on eDP or LVDS avoid breaking the + * aux dp channel on imac and help (but not completely fix) + * https://bugzilla.redhat.com/show_bug.cgi?id=726143 + * also avoid interrupt storms during dpms. + */ + u32 dc_hpd_int_cntl_reg, dc_hpd_int_cntl; + + switch (amdgpu_connector->hpd.hpd) { + case AMDGPU_HPD_1: + dc_hpd_int_cntl_reg = mmDC_HPD1_INT_CONTROL; + break; + case AMDGPU_HPD_2: + dc_hpd_int_cntl_reg = mmDC_HPD2_INT_CONTROL; + break; + case AMDGPU_HPD_3: + dc_hpd_int_cntl_reg = mmDC_HPD3_INT_CONTROL; + break; + case AMDGPU_HPD_4: + dc_hpd_int_cntl_reg = mmDC_HPD4_INT_CONTROL; + break; + case AMDGPU_HPD_5: + dc_hpd_int_cntl_reg = mmDC_HPD5_INT_CONTROL; + break; + case AMDGPU_HPD_6: + dc_hpd_int_cntl_reg = mmDC_HPD6_INT_CONTROL; + break; + default: + continue; + } + + dc_hpd_int_cntl = RREG32(dc_hpd_int_cntl_reg); + dc_hpd_int_cntl &= ~DC_HPD1_INT_CONTROL__DC_HPD1_INT_EN_MASK; + WREG32(dc_hpd_int_cntl_reg, dc_hpd_int_cntl); + continue; + } + dce_v8_0_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd); amdgpu_irq_get(adev, &adev->hpd_irq, amdgpu_connector->hpd.hpd); } -- cgit 1.2.3-korg